Episode 3 delves into how life began on a roiling, violent Earth and explores the story behind Victor Goldschmidt, the man who found the first clues to life's beginnings on our planet. Neil deGrasse Tyson takes viewers on a journey through space and time to witness the tenacity and creativity of life on Earth and the prospects of life throughout the universe.

After the success of Florence and the Uffizi, a new film production by Sky 3D and the Vatican Television Centre, taking you on a journey through the four Papal Basilicas in Rome and their treasures: St. Peter’s (one of the 25 destinations most visited by travellers from all over the world), St. John in the Lateran, St. Mary Major and St. Paul Outside the Walls. Four majestic buildings – each with a precious papal altar, each a treasure trove of timeless works of art and a destination for millions of travellers and pilgrims over the centuries – play the leading role in a new film tour that has been recognized as a work of cultural interest by the film board of the Ministry of Culture, Heritage and Tourism.

Without words, Ron Fricke shows us the world, with an emphasis not on 'where,' but on 'what's there.' It begins with morning, natural landscapes and people at prayer: volcanoes, water falls, veldts, and forests; several hundred Balinese Hindu men perform kecak, the monkey chant. Indigenous peoples apply body paint; whole villages dance. The film moves to destruction of nature via logging, blasting, and strip mining. Images of poverty, rapid urban life, and factories give way to war, concentration camps, and mass graves. Ancient ruins come into view, and then a sacred river where pilgrims bathe and funeral pyres burn. Prayer and nature return. A monk rings a huge bell; stars wheel across the sky. (Click CC for places description)

The fourth episode sees host Neil deGrasse Tyson exploring our eternal quest to end hunger and honoring Nikolai Ivanovic Vavilov, pioneer of modern plant breeding, who risked his life for a discovery that would change the history of science. Vavilov's story is marked by both the tenacity and creativity and is particularly tragic. Interwoven into Vavilov's somber narrative are warnings and treatments of science and its ethical implications, especially when science itself comes under attack from political forces.

In 335 BC Alexander of Macedonia set off on an expedition to conqueror the world. The voyage of Alexander the Great covered more than 22,000 miles in ten years, from Greece to India and back, through some of the most difficult and unforgiving terrain. Michael Wood was hot on his trail, following, as closely as possible, in the footsteps of Alexander and the army that he drove to achieve the impossible. In this programme: the Lebanese city of Tyre, scene of Alexander's most desperate battle; the Palestinian legend of `Two-Horned Alexander'; and the Egyptian oasis of Siwa, where Alexander was proclaimed pharaoh and son of God.

Visit the ghostly villages surrounding Chernobyl (abandoned by humans after the 1986 nuclear disaster), travel to remote islands off the coast of Maine to search for abandoned towns that have vanished from view in only a few decades, then head beneath the streets of New York to see how subway tunnels may become watery canals. A visual journey, LIFE AFTER PEOPLE is a thought provoking adventure that combines movie-quality visual effects with insights from experts in the fields of engineering, botany, ecology, biology, geology, climatology, and archaeology to demonstrate how the very landscape of our planet will change in our absence.